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**huckduck** · February 28th, 2012, 02:20 AM

So, i'm setting up my friends BNIB OG quest, and after i'm done lubing everything i throw a tank on it, and its got two issues. first one is easy, its leaking out the ASA cuz the loctite around the macro fitting is dryer than a granny's..... oops. did i just go there?

second issue, got no idea what to do with this one. i was trying to set the LPR, but the needle doesn't respond to the LPR changes, it only creeps with the HPR. i'm doing this in his basement so i don't have paint or a chrono, or enough o-rings for a full rebuild. the rebuild will happen on friday when i get to the field, but any other possible diagnoses and/or solutions?

tlmiller · February 28th, 2012, 07:28 AM

That could be the LPR core, LPR spring.

When you say it creeps iwth the HPR, you mean you can adjust the LPR all you want and nothing happens, but when you adjust the HPR the gauge goes up and down with it?

**huckduck** · February 28th, 2012, 12:20 PM

It'll go up when up the hpr, but won't go back down until I clear the air (dry fire).

And yeah basically. I set team hpr sand started tweaking the lpr and nothing was happening on he gauge. So I thought the hpr was closed off. But when I went to tweak the hpr, the needle started going up. I tweaked the lpr again and nothing. I tweaked the hpr again and it went up again. I didn't let the gauge go over 120 just in case the hpr was indeed doing something wonky.

tlmiller · February 28th, 2012, 12:55 PM

you've definitely got something wrong with the LPR. If it's an old style, I'd talk to whoever it is that just ordered like an entire box of them (only sold in packs of 10) and pick one up and try replacing it. Is the spring noticeably fatigued also?

**the_real_kaz** · February 28th, 2012, 04:39 PM

I'd bet good money the core is fine. Cores don't break from sitting in a box (if it is actually BNIB). O-rings on the other hand go bad from sitting and drying out. Change the O-rings on the LPR and HPR, lube them and that should do the trick.

**huckduck** · February 28th, 2012, 05:24 PM

will report in after full rebuild. the spring isn't fatigued. my quest's cores are softer than his.

although i don't think the orings are are dry... more like swollen to $***. they were stored lubed with some green stuff. i only ever use monkey poo and eclipse grease so i don't know what grease was on it.

tlmiller · February 28th, 2012, 05:55 PM

could have been hater v2, I seem to recall that's supposed to be green (looks brown to me, but I'm color blind).

**huckduck** · February 28th, 2012, 06:52 PM

hater v1 is pink?

tlmiller · February 28th, 2012, 07:00 PM

Yes, v1 is pink.

**huckduck** · March 30th, 2012, 09:11 PM

Did full rebuild of every o-ring in the marker (didn't take cores out). Still happens. It doesn't do anything when the lpr is adjusted now

**huckduck** · April 4th, 2012, 03:25 AM

any suggestions? i can make vid if need be

tlmiller · April 4th, 2012, 11:46 AM

Change the small oring on the LPR core.

**huckduck** · April 4th, 2012, 01:03 PM

any idea what size that one is?

tlmiller · April 4th, 2012, 02:48 PM

No idea. If you don't figure out before then, I should be able to check this weekend.

**huckduck** · April 4th, 2012, 03:46 PM

ok, so i've ruled out the core, although the core looks quite different than mine. (gold one the one on the "broken" marker)

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i swapped cores and it was still having the problem and mine shot ok

i reseated the hpr o-ring as well as the front block o-rings. seems to have fixed it. i might have forgotten to do the HPR oring on the rebuild, but it seems to work now.

tlmiller · April 4th, 2012, 04:01 PM

Those are 2 different cores. There's the original silver core (AC element from a Volvo) and there's the newer gold core (don't know if there is an automotive part that replaces it).

They're NOT interchangeable. If you're LPR was designed for one, it is NOT supposed to work with the other. Odd that yours did.

**huckduck** · April 4th, 2012, 07:29 PM

i don't see why they wouldn't be interchangable. mechanically speaking they're the same thing, just with different spacing. from an uneducated point of view, why can't you just turn the lpr in further to work it?

tlmiller · April 4th, 2012, 10:43 PM

Never compared the cores, I assumed there were actually different dimensions. I just know it has always been said you can't replace 1 with the other, must be like for like.

**huckduck** · April 5th, 2012, 12:57 AM

dimensionally they are different. but the rest of the LPR pieces are identical, or as far as i can tell, which leads me to assume that its the amount of pressure on the core that sets the lpr pressure. of course i'm pulling this outta my arse

tlmiller · April 5th, 2012, 01:28 AM

Yeah, never actually compared them myself. In fact, I don't even know which core my OG Quest has...